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Best way to resolve file path too long exception
... For example, the maximum path on drive D is "D:\some
256-character path string<NUL>" where "<NUL>" represents the invisible
terminating null character for the current system codepage. (The
characters < > are used here for visual clarity and cannot be part of
a valid path s...
Printf width specifier to maintain precision of floating-point value
...o the necessary number of significant digits such that when scanning the string back in, the original floating point value is acquired?
...
How to add a progress bar to a shell script?
... order to accomplish the same thing you need to put \r\c at the end of the string, instead of just \r
– Justin Jenkins
Apr 2 '12 at 1:17
...
Converting a Date object to a calendar object [duplicate]
...er = new SimpleDateFormat("yyyyMMdd");
date = (Date)formatter.parse(date.toString());
DateFormat is used to convert Strings to Dates (parse()) or Dates to Strings (format()). You are using it to parse the String representation of a Date back to a Date. This can't be right, can it?
...
Can my enums have friendly names? [duplicate]
... easy to get the description for a given value of the enum:
public static string GetDescription(this Enum value)
{
Type type = value.GetType();
string name = Enum.GetName(type, value);
if (name != null)
{
FieldInfo field = type.GetField(name);
if (field != null)
...
Is it possible to read the value of a annotation in java?
...Retention(RetentionPolicy.RUNTIME)
public @interface TestAnnotation {
String testText();
}
And a sample annotated method:
class TestClass {
@TestAnnotation(testText="zyx")
public void doSomething() {}
}
And a sample method in another class that prints the value of the testText:
M...
Find a class somewhere inside dozens of JAR files?
...
To locate jars that match a given string:
find . -name \*.jar -exec grep -l YOUR_CLASSNAME {} \;
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Create instance of generic type in Java?
...get();
}
}
You would construct this class like this:
SomeContainer<String> stringContainer = new SomeContainer<>(String::new);
The syntax String::new on that line is a constructor reference.
If your constructor takes arguments you can use a lambda expression instead:
SomeContain...
Interfaces with static fields in java for sharing 'constants'
...ittenConstants
{
private KittenConstants() {}
public static final String KITTEN_SOUND = "meow";
public static final double KITTEN_CUTENESS_FACTOR = 1;
}
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Python ValueError: too many values to unpack [duplicate]
...s is a dict and by default you are iterating over just the keys (which are strings).
Since self.materials has more than two keys*, they can't be unpacked into the tuple "k, m", hence the ValueError exception is raised.
In Python 2.x, to iterate over the keys and the values (the tuple "k, m"), we u...